备用操纵后缘襟翼时旁通活门() A.关闭 B.半开半关 C.打开 D.不确定 发布时间:2020-12-15 04:58 │ 来源:www.tikuol.com 题型:单项选择题 问题: 备用操纵后缘襟翼时旁通活门()A.关闭B.半开半关C.打开D.不确定
题型:单项选择题 I don't believe we've met before, ________ I must say you do look familiar. [ ]A. therefore B. although C. since D. unless 查看答案